#include <iostream>

using namespace std;
typedef long long ll;
const int N = 1010;
ll a[N][N];
int n, m, q;
int main()
{
    cin >> n >> m >> q;
    for (int i = 1; i <= n; i++)
    {
        for (int j = 1; j <= m; j++)
        {
            ll x;
            cin >> x;
            a[i][j] = a[i - 1][j] + a[i][j - 1] - a[i - 1][j - 1] + x;
        }
    }
    while (q--)
    {
        ll x1, y1, x2, y2;
        cin >> x1 >> y1 >> x2 >> y2;
        cout << a[x2][y2] - a[x1 - 1][y2] - a[x2][y1 - 1] + a[x1 - 1][y1 - 1] << endl;
    }
    return 0;
}